Question

In triangle pqr if b and c are points on the sides pr and or

Answer 1

In △ RPQ,RP = 18 cmRB = 10 cm⇒ BP = RP − RB = 18 − 10 = 8 cmNow, RC = 15 cmCQ = 12 cmNow, RBBP = 108 = 54and RCCQ = 1512 = 54⇒ RBBP = RCCQIn △ RPQ, we have,RBBP = RCCQ [Proved above]⇒ BC ∥ PQ [Converse of BPT]